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Understanding the Photoexcitation of Room Temperature Ionic Liquids

Photoexcitation of (neat) room temperature ionic liquids (RTILs) leads to the observation of transient species that are reminiscent of the composition of the RTILs themselves. In this minireview, we summarize state‐of‐the‐art in the understanding of the underlying elementary processes. By varying th...

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Autores principales: Leier, Julia, Michenfelder, Nadine C., Unterreiner, Andreas‐Neil
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7874249/
https://www.ncbi.nlm.nih.gov/pubmed/33565733
http://dx.doi.org/10.1002/open.202000278
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author Leier, Julia
Michenfelder, Nadine C.
Unterreiner, Andreas‐Neil
author_facet Leier, Julia
Michenfelder, Nadine C.
Unterreiner, Andreas‐Neil
author_sort Leier, Julia
collection PubMed
description Photoexcitation of (neat) room temperature ionic liquids (RTILs) leads to the observation of transient species that are reminiscent of the composition of the RTILs themselves. In this minireview, we summarize state‐of‐the‐art in the understanding of the underlying elementary processes. By varying the anion or cation, one aim is to generally predict radiation‐induced chemistry and physics of RTILs. One major task is to address the fate of excess electrons (and holes) after photoexcitation, which implies an overview of various formation mechanisms considering structural and dynamical aspects. Therefore, transient studies on time scales from femtoseconds to microseconds can greatly help to elucidate the most relevant steps after photoexcitation. Sometimes, radiation may eventually result in destruction of the RTILs making photostability another important issue to be discussed. Finally, characteristic heterogeneities can be associated with specific physicochemical properties. Influencing these properties by adding conventional solvents, like water, can open a wide field of application, which is briefly summarized.
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spelling pubmed-78742492021-02-19 Understanding the Photoexcitation of Room Temperature Ionic Liquids Leier, Julia Michenfelder, Nadine C. Unterreiner, Andreas‐Neil ChemistryOpen Reviews Photoexcitation of (neat) room temperature ionic liquids (RTILs) leads to the observation of transient species that are reminiscent of the composition of the RTILs themselves. In this minireview, we summarize state‐of‐the‐art in the understanding of the underlying elementary processes. By varying the anion or cation, one aim is to generally predict radiation‐induced chemistry and physics of RTILs. One major task is to address the fate of excess electrons (and holes) after photoexcitation, which implies an overview of various formation mechanisms considering structural and dynamical aspects. Therefore, transient studies on time scales from femtoseconds to microseconds can greatly help to elucidate the most relevant steps after photoexcitation. Sometimes, radiation may eventually result in destruction of the RTILs making photostability another important issue to be discussed. Finally, characteristic heterogeneities can be associated with specific physicochemical properties. Influencing these properties by adding conventional solvents, like water, can open a wide field of application, which is briefly summarized. John Wiley and Sons Inc. 2020-12-03 /pmc/articles/PMC7874249/ /pubmed/33565733 http://dx.doi.org/10.1002/open.202000278 Text en © 2020 The Authors. Published by Wiley-VCH GmbH This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.
spellingShingle Reviews
Leier, Julia
Michenfelder, Nadine C.
Unterreiner, Andreas‐Neil
Understanding the Photoexcitation of Room Temperature Ionic Liquids
title Understanding the Photoexcitation of Room Temperature Ionic Liquids
title_full Understanding the Photoexcitation of Room Temperature Ionic Liquids
title_fullStr Understanding the Photoexcitation of Room Temperature Ionic Liquids
title_full_unstemmed Understanding the Photoexcitation of Room Temperature Ionic Liquids
title_short Understanding the Photoexcitation of Room Temperature Ionic Liquids
title_sort understanding the photoexcitation of room temperature ionic liquids
topic Reviews
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7874249/
https://www.ncbi.nlm.nih.gov/pubmed/33565733
http://dx.doi.org/10.1002/open.202000278
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